#include <cstdio>
#include <cstring>
#include <iostream>
#include <algorithm>
using namespace std;
int main()
{
	int n,cnt = 0;
	scanf("%d",&n);
	int a[n+10];
	memset(a,0,sizeof(a));
	int p;
	scanf("%d",&p);
	for(int i = 0;i<p;i++)
	{
		int x;
		scanf("%d",&x);
		if(!a[x]) 
		{
			//printf("****%d\n",x);
			cnt++;
			a[x] = 1;
		}
	}
	int q;
	scanf("%d",&q);
	for(int i = 0;i<q;i++)
	{
		int x;
		scanf("%d",&x);
		if(!a[x])
		{
			cnt++;
			a[x] = 1;
		}
	}
	//printf("%d\n",cnt);
	if(cnt<n) printf("Oh, my keyboard!\n");
	else printf("I become the guy.\n");
}
